Hamlet

GHOST: No one likes a know-it-all.

ME: Know-it-alls?  All I know is, you're dead.

GHOST: Cold comfort.  You'll follow! You'll follow son!  Remember this, "Don't be a know-it-all." They tend to get fired.

ME: 'To be or not to be', is that it?

GHOST: You're learning John.  John.

ME: Yes?

GHOST: You don't know much. You really don't.  You know how to satisfy yourself.